The General IdeaI want a vacuum pump. Mainly so that I can aluminize my own mirrors. Yes I know you can send them off to a company and get it done for pretty cheap. But I want to do it myself, in my garage, and this being Hackaday I trust that you are...
The ConceptMost bats navigate at night by echolocation, sending out ultrasonic pings to get a picture of the world around them. This device detects those pings. Since bats are in short supply this time of year, I cobbled together a bat call simulator...
The staffEvery warlock has a staff and this staff is packed with goodies – soft lights, high lights, fairy lights and cloak color and pattern control that is being done by a lot of software, electronics and wireless modules – very useful lights for the...
The circuit has been updated but here are the original design elements. Read the comments for more details :-)So here is the old schematic:RequirementsCheap. A CD4017 or 74HC4017 costs about 1$, add some "dust" (diodes, resistors) and a small PCB.Simple...
Makerspace Nanaimo is an open community lab: a blend of workshop, studio space, social hub and educational facility where members can share tools, resources and knowledge to build just about anything.On any given day you might have people woodworking,...
Site 3 coLaboratory is a 2,000 square foot member-run makerspace in Toronto’s west end. We are dedicated to making, teaching, learning and thinking about the intersection between art and technology. We make amazing things, and we teach others to make...
The model was made in a special branch of FreeCAD, so it won't work in regular FreeCAD. It will open though, and modeling steps can still be viewed, and BRep shapes can be extracted. It will fail to be recomputed if you try changing the parameters.To...
Most IAQ systems that are commercially available are designed to warn users once the measured data passes a certain dangerous limits (for example smoke detectors). However, they don't deliver regular data.Our goal is to create a wireless indoor air quality...
My initial attempts centered around running the joule thief at a low enough frequency to flash the LEDs itself, or by using the common NPN junction breakdown type flasher after the usual jt circuit. Both of these just used way too much power, the low...
Construction:As shown in Image Solenoid valve 1 will be connected to the INLET of the filter.Valve 2 is connected to the OUTPUT side as shown in figure. Valve 3 is to flush out all the dirt/contaminates.A cleaning element (a brush) that is covering the...
It is not exciting to read a lot of general stuff about software API's, so let's code our first real-life application right now.Jump start example - Heart Beat Blinky LEDThis example aims to show how straightfoward it is to code a "heart beat" LED task...
I've had a Rock Band keytar controller on the shelf in my dungeon for a while that I found for a few bucks at a furniture outlet of all places. For some reason, it puts out regular MIDI in addition to being a game controller - just connect a cord from...
It was important to make sure there was no debris or filings to short out the mobo, so I washed the parts and the inside of the can before assembly (I'm sure there was a minute amount of nasty compounds inside the can like mercury fulminate or lead azide).The...
The ATX supply should have as high an amperage output at +12V as possible. You will need to hardwire the ATX on by connecting “PS-ON” (green wire) to ground. All yellow wires should be tied together to form the +12V rail, and all black...
So basically what I did is I took a lightbulb for car brakelights which contains two independent filaments in one bulb (one is for the normal tail light and the second brighter one lights up when you brake) and I burnt the less bright one by connecting...